Huh, strange. I played for about an hour using "save and continue" the entire time, and my save didn't show up after rebooting the DS.
Using "save and quit" eliminates the problem, though.
Just skimming over the comments on that page kills me inside.
"what sites can u get the hax???"
"you get them fom hackmii.com but what does format meen"
"hurray im not mad at my wii anymore! so wheres a good place to get ROMs?"
And the best one:
"i cant get mine to work can anyone help"